So before I watched this drama, I read a lot of good reviews about it. While I wouldn't say the reviews were misleading, I would say that it was overrated. I thought this drama was GOOD, very good, even, but not amazing. What I liked about it was firstly, the characters - it was so refreshing to see a female character like Chun Song Yi. She was confident, loud and entertaining, but she didn't hide her vulnerabilities. She's also so straightforward - she says what's on her mind outright. Do Min Joon's character compliments hers, and the two have very good chemistry. The romance was cute. They were both funny and adorable together. The side characters - Lee Hui Kyung (he's such a sweetheart OMG) were great too. I liked how they each had a role and some kind of character development or the other. The second thing I liked was the humor aspect. This drama honestly made me giggle and laugh out loud. It was truly a feel-good drama. What I didn't like was the ending - it was a little unsatisfying. Also, there were a lot of sci-fi aspects that the drama didn't fully explain: certain things happened to Do Min Joon because of him being an alien that didn't make sense. The way I saw it, this was mostly a romance drama with a sci-fi twist. Throw in a murder investigation and some suspense to keep the plot moving, and that's what this drama is about. It was fun, entertaining and there were times when you truly felt for the characters.